Model of molecule



FIG. 1 is a front perspective view of the subject design;

FIG. 2 is a rear perspective view thereof;

FIG. 3 is a left side view thereof (the right side view is a mirror image);

FIG. 4 is a front elevational view thereof;

FIG. 5 is a rear elevational view thereof;

FIG. 6 is a top plan view thereof; and,

FIG. 7 is a bottom plan view thereof. 

The ornamental design for a model of molecule, as shown. 